cjet 0.8.9-2 (i386 binary) in ubuntu quantal

 CJET filters printer data from stdin to stdout, converting HP PCL
 (Printer Command Language) escape sequences and data structures,
 e.g. font headers, to their CaPSL equivalents.
 .
 The only printers known to use this language are the Canon LBP-4U and
 Canon LBP-8A1.